Pith Number

pith:POK6H7LI

pith:2022:POK6H7LI7A5RJCDW5SRA7KGYIT

not attested not anchored not stored refs pending

Chain-level equivariant string topology: algebra versus analysis

Evgeny Volkov, Kai Cieliebak, Pavel Hajek

arxiv:2202.06837 v2 · 2022-02-14 · math.AT · math.SG

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{POK6H7LI7A5RJCDW5SRA7KGYIT}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-05T07:25:36.857657Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7b95e3fd68f83b148876eca20fa8d844c14c83cf5d679e9888cc359f53021c68

Aliases

arxiv: 2202.06837 · arxiv_version: 2202.06837v2 · doi: 10.48550/arxiv.2202.06837 · pith_short_12: POK6H7LI7A5R · pith_short_16: POK6H7LI7A5RJCDW · pith_short_8: POK6H7LI

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/POK6H7LI7A5RJCDW5SRA7KGYIT \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 7b95e3fd68f83b148876eca20fa8d844c14c83cf5d679e9888cc359f53021c68

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "18878eeffabf46c57b6ea254873459f475eb9d8a4911e9670c34455ff2956e4f",
    "cross_cats_sorted": [
      "math.SG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2022-02-14T16:20:10Z",
    "title_canon_sha256": "c666474270e69bae2972690b66f9314c887642a72d45a3fd0f413dbf7d206363"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2202.06837",
    "kind": "arxiv",
    "version": 2
  }
}